UNESCO: 30 percent of Aleppo's ancient city destroyed

Syrians walk through the destruction in the old city of Aleppo, Syria, Thursday, Jan. 19, 2017. Last month, government forces captured all parts of eastern Aleppo, brining Syria's largest city to full control of Syrian authorities for the first time since July 2012. The capture of Aleppo was President Bashar Assad's biggest victory since the country's crisis began nearly six years ago. (AP Photo/Hassan Ammar)
(The Associated Press)

Children climb the 11th-century minaret of the famed heavily damaged Grand Umayyad mosque that collapsed on April 24, 2013, that once towered over the narrow stone alleyways of Aleppo's in the old city of Aleppo, Syria, Thursday, Jan. 19, 2017. Last month, government forces captured all parts of eastern Aleppo, brining Syria's largest city to full control of Syrian authorities for the first time since July 2012. The capture of Aleppo was President Bashar Assad's biggest victory since the country's crisis began nearly six years ago. (AP Photo/Hassan Ammar)
(The Associated Press)

A mortar shall is seen in the foreground as people visit the heavily damaged Grand Umayyad mosque while the Aleppo citadel is seen in the background, in the old city of Aleppo, Syria, Thursday, Jan. 19, 2017. Last month, government forces captured all parts of eastern Aleppo, brining Syria's largest city to full control of Syrian authorities for the first time since July 2012. The capture of Aleppo was President Bashar Assad's biggest victory since the country's crisis began nearly six years ago. (AP Photo/Hassan Ammar)
(The Associated Press)

PARIS – UNESCO says about a third of the ancient city of Aleppo has been destroyed during the war in Syria.

The United Nations cultural organization conducted an emergency mission in Aleppo from between Monday and Thursday this week to assess damage at the World Heritage Site and reported "extensive damage" at the Great Umayyad Mosque, the Citadel and other historic buildings.

UNESCO said in a statement that "60 percent of the old city of Aleppo has been severely damaged, with 30 percent totally destroyed."

UNESCO envoys also met with Aleppo council members and non-governmental organizations and proposed that the ancient city should be declared an "emergency zone."

Pro-government forces recaptured Aleppo in December, ending rebels' four-year hold on parts of Syria's once largest and most important city.